John Muir's ebullient spirit and love of nature infuse these accounts of visiting Yosemite Valley, Kings Canyon, sequoia groves, and Mount Whitney. Blending keen observations of flora, geography, and geology, the natural forces that shape the landscape, and the changing seasons, Muir paints a timeless portrait of the wilderness he called "the Range of Light, the most divinely beautiful of all the mountain chains I have ever seen."